Noise or vibration causing damage to the turbine blades as a results of bubbles that form in the water as it goes through the turbine which causes a loss in capacity, head loss, efficiency loss, and the cavity or bubble collapses when they pass into higher regions of pressure.

Direct current (DC)

Water Power

Electric current which flows in one direction.

Efficiency

Water Power

A percentage obtained by dividing the actual power or energy by the theoretical power or energy. It represents how well the hydropower plant converts the energy of the water into electrical energy.

Flow

Water Power

Volume of water, expressed as cubic feet or cubic meters per second, passing a point in a given amount of time.